Explanation:

- Chlorophyll: Correct Answer

- Chlorophyll is the green pigment in plants.

- It plays a crucial role in photosynthesis by absorbing light.

- Chlorophyll helps convert light into energy for the plant.

- Sugar (Glucose):

- Glucose is a sugar produced during photosynthesis.

- It serves as energy but does not help in light transmission.

- Lectin:

- Lectins are proteins that bind to cell membranes.

- They are not involved in light transmission or photosynthesis.

- Curcumin:

- Curcumin is found in turmeric.

- It is not related to light transmission in plants.